Add doctests to all user functions in sympy/polys/polytools.py
Add doctests to all user functions in sympy/polys/polytools.py

Signed-off-by: Mateusz Paprocki <4e51c28eba28c1534bcc4a6bd2cccd314d8bf749@gmail.com>

mcdaniel67/sympy,ahhda/sympy,grevutiu-gabriel/sympy,Arafatk/sympy,minrk/sympy,aktech/sympy,oliverlee/sympy,rahuldan/sympy,sampadsaha5/sympy,bukzor/sympy,Davidjohnwilson/sympy,moble/sympy,Sumith1896/sympy,wanglongqi/sympy,cccfran/sympy,atreyv/sympy,Davidjohnwilson/sympy,vipulroxx/sympy,VaibhavAgarwalVA/sympy,jerli/sympy,pbrady/sympy,AunShiLord/sympy,moble/sympy,kaushik94/sympy,sampadsaha5/sympy,wyom/sympy,dqnykamp/sympy,rahuldan/sympy,sahilshekhawat/sympy,souravsingh/sympy,Curious72/sympy,cswiercz/sympy,iamutkarshtiwari/sympy,liangjiaxing/sympy,toolforger/sympy,abloomston/sympy,Vishluck/sympy,Vishluck/sympy,asm666/sympy,liangjiaxing/sympy,debugger22/sympy,jaimahajan1997/sympy,garvitr/sympy,sahmed95/sympy,meghana1995/sympy,madan96/sympy,AkademieOlympia/sympy,postvakje/sympy,Curious72/sympy,wyom/sympy,diofant/diofant,mafiya69/sympy,Designist/sympy,AunShiLord/sympy,saurabhjn76/sympy,ChristinaZografou/sympy,Designist/sympy,meghana1995/sympy,jaimahajan1997/sympy,ga7g08/sympy,Arafatk/sympy,AkademieOlympia/sympy,skirpichev/omg,hrashk/sympy,emon10005/sympy,hrashk/sympy,abloomston/sympy,MechCoder/sympy,sahmed95/sympy,souravsingh/sympy,cswiercz/sympy,debugger22/sympy,saurabhjn76/sympy,skidzo/sympy,sahilshekhawat/sympy,wanglongqi/sympy,mcdaniel67/sympy,emon10005/sympy,vipulroxx/sympy,aktech/sympy,pandeyadarsh/sympy,mcdaniel67/sympy,kaichogami/sympy,MechCoder/sympy,Shaswat27/sympy,AunShiLord/sympy,kumarkrishna/sympy,postvakje/sympy,farhaanbukhsh/sympy,kumarkrishna/sympy,Mitchkoens/sympy,jamesblunt/sympy,madan96/sympy,lindsayad/sympy,toolforger/sympy,lidavidm/sympy,Curious72/sympy,asm666/sympy,beni55/sympy,MridulS/sympy,shikil/sympy,oliverlee/sympy,pandeyadarsh/sympy,shikil/sympy,kmacinnis/sympy,aktech/sympy,cccfran/sympy,ahhda/sympy,Mitchkoens/sympy,yashsharan/sympy,dqnykamp/sympy,vipulroxx/sympy,sampadsaha5/sympy,atreyv/sympy,Designist/sympy,pernici/sympy,maniteja123/sympy,kaichogami/sympy,Shaswat27/sympy,MridulS/sympy,Davidjohnwilson/sympy,abhiii5459/sympy,atsao72/sympy,kaushik94/sympy,shipci/sympy,shipci/sympy,VaibhavAgarwalVA/sympy,skidzo/sympy,yashsharan/sympy,atsao72/sympy,amitjamadagni/sympy,abhiii5459/sympy,hrashk/sympy,liangjiaxing/sympy,shikil/sympy,jerli/sympy,skidzo/sympy,yukoba/sympy,hargup/sympy,sahmed95/sympy,sunny94/temp,garvitr/sympy,beni55/sympy,grevutiu-gabriel/sympy,Arafatk/sympy,kaichogami/sympy,farhaanbukhsh/sympy,ahhda/sympy,Vishluck/sympy,iamutkarshtiwari/sympy,Sumith1896/sympy,ChristinaZografou/sympy,kumarkrishna/sympy,saurabhjn76/sympy,kevalds51/sympy,Gadal/sympy,AkademieOlympia/sympy,sahilshekhawat/sympy,abloomston/sympy,yukoba/sympy,Shaswat27/sympy,sunny94/temp,kevalds51/sympy,chaffra/sympy,kevalds51/sympy,flacjacket/sympy,yashsharan/sympy,dqnykamp/sympy,cswiercz/sympy,Gadal/sympy,moble/sympy,jbbskinny/sympy,cccfran/sympy,lidavidm/sympy,amitjamadagni/sympy,chaffra/sympy,garvitr/sympy,madan96/sympy,asm666/sympy,ChristinaZografou/sympy,debugger22/sympy,souravsingh/sympy,drufat/sympy,abhiii5459/sympy,jamesblunt/sympy,mafiya69/sympy,beni55/sympy,bukzor/sympy,ga7g08/sympy,MridulS/sympy,kmacinnis/sympy,drufat/sympy,jerli/sympy,minrk/sympy,Titan-C/sympy,oliverlee/sympy,emon10005/sympy,meghana1995/sympy,jbbskinny/sympy,kmacinnis/sympy,drufat/sympy,sunny94/temp,srjoglekar246/sympy,pbrady/sympy,hargup/sympy,mafiya69/sympy,lindsayad/sympy,maniteja123/sympy,yukoba/sympy,pandeyadarsh/sympy,Sumith1896/sympy,grevutiu-gabriel/sympy,wanglongqi/sympy,toolforger/sympy,farhaanbukhsh/sympy,jaimahajan1997/sympy,Titan-C/sympy,jamesblunt/sympy,kaushik94/sympy,pbrady/sympy,maniteja123/sympy,atreyv/sympy,chaffra/sympy,lidavidm/sympy,ga7g08/sympy,MechCoder/sympy,VaibhavAgarwalVA/sympy,postvakje/sympy,iamutkarshtiwari/sympy,jbbskinny/sympy,Mitchkoens/sympy,wyom/sympy,Gadal/sympy,atsao72/sympy,lindsayad/sympy,bukzor/sympy,shipci/sympy,Titan-C/sympy,hargup/sympy,rahuldan/sympy